Bug 459015

SUMMARY
I have installed KRFB package on my Kubuntu 22.04.1 PC.
Each time I stated KRFB, its windows appears.
As soon as I have changed the default password connexion, quit KRFB and restart it, windows of KRFB did not open anymore. This bug was reproduced on an another Kubuntu PC (20.04). I have try to purge all packages (sudo apt purge krfb ; sudo apt purge libvncserver1), reboot computer and reinstalled it, but anything changed.

NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports

*** I have read all your documentation to try to generate a reporting crash. But it's very complex for me, I am not a computer man, I don't understand all. Then I failed, sorry :( ***

STEPS TO REPRODUCE
1. open KRFB
2. change password (strong one : symbol, number, alpha > =12 )
3. save password
4. quit Krfb
5. open krfb

OBSERVED RESULT
Krfb window do not open anymore

EXPECTED RESULT
krfb window opens

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 22.04.1
(available in About System)
KDE Plasma Version: 5.24.6
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION
Do the same bug on Kubuntu 20.04 on another PC